WO2021098235A1 - 一种基于基带混频的宽频段复杂样式捷变频信号发生系统 - Google Patents

一种基于基带混频的宽频段复杂样式捷变频信号发生系统 Download PDF

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WO2021098235A1
WO2021098235A1 PCT/CN2020/101256 CN2020101256W WO2021098235A1 WO 2021098235 A1 WO2021098235 A1 WO 2021098235A1 CN 2020101256 W CN2020101256 W CN 2020101256W WO 2021098235 A1 WO2021098235 A1 WO 2021098235A1
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agile
frequency
unit
signal
baseband
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French (fr)
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台鑫
刘亮
刘青松
范吉伟
卢凯
李增红
柳瑞丛
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中电科仪器仪表有限公司
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4188—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by CIM planning or realisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • the invention relates to the field of frequency agility, in particular to a frequency agile signal generating system with a wide frequency band and complex pattern based on baseband mixing.
  • Frequency agile electromagnetic signal generation technology is one of the key technologies in technical fields such as frequency agile radar, electronic countermeasures, and complex electromagnetic environment simulation.
  • the purpose is to achieve a fast and controllable jump of the electromagnetic signal frequency.
  • the fastest frequency switching time in the frequency range of 10MHz to 40GHz can reach an index of less than 100ns, that is, the number of frequency switching times per second can reach several million times.
  • the main focus was on the switching speed of the signal frequency, while less consideration was given to factors such as signal style and bandwidth. Therefore, DDS+microwave frequency multiplication is usually adopted for the generation of wide-band frequency agile signals.
  • This method meets the frequency switching speed requirements, but due to the microwave frequency multiplication mechanism, this method can only be used to generate simple signals such as continuous wave agility signals and pulse modulation agility signals. For signals with complex modulation patterns, nonlinear distortion will be generated during the frequency multiplication process, which limits the occurrence of frequency agile signals with complex modulation patterns.
  • the DDS+microwave frequency multiplication method takes the generation of frequency agile signals from 10MHz to 18GHz as an example, and the principle is shown in Figure 1.
  • the scheme is mainly composed of DDS unit, microwave frequency multiplication unit and reference signal generation module.
  • a 100MHz bandwidth linear frequency modulation signal is realized in the DDS unit, and a 5-level frequency multiplication is used in the microwave frequency multiplication unit to realize the coverage of the frequency agile signal in the 10MHz-18GHz frequency band.
  • the frequency doubling method makes the signal spectrum generated by the DDS unit non-linearly stretch, and cannot generate agile frequency doubling of the complex modulation format signal.
  • the chirp characteristics and spectral purity of the output signal are determined by the phase-frequency characteristics, amplitude-frequency characteristics and out-of-band suppression of the frequency multiplier.
  • This solution requires a wide signal bandwidth for frequency multiplication, and at the maximum, it needs to multiply the frequency from 4 GHz to 8 GHz to 8 GHz to 16 GHz. It is difficult to flatten the amplitude-frequency characteristics within this bandwidth range.
  • this scheme has performed 4 times of frequency multiplication, and the frequency multiplier has a multiplication effect on signal distortion, and the amplitude flatness in the frequency band deteriorates significantly after four consecutive times of frequency multiplication.
  • a proper filter design is also the key to ensuring a flat signal amplitude within the modulation bandwidth.
  • This scheme uses three-stage filtering in each octave. After each filtering, it is re-multiplied and filtered. A total of 4 re-multiplied and re-filtered processes. Due to the non-linear distortion of the filter itself, it has undergone multiple doublings. With the processing of frequency, filtering, frequency multiplication, and filtering, the amplitude flatness of the signal will deteriorate exponentially. It can be seen that, although this solution can meet the frequency agile speed requirements, it cannot generate complex modulated frequency agile signals. It can also be seen that the signal purity of simple frequency agile signals such as continuous wave or chirp generated by this scheme is also significantly limited. This has also led to the fact that in the past frequency agile signal generation technology based on this method, the quality of the generated signal is highly dependent on the indicators of the DDS device.
  • the present invention provides a frequency agile signal generation system with a wide frequency band and complex pattern based on baseband mixing.
  • a broadband agile signal generation system with complex frequency bands based on baseband mixing including baseband agile unit, mixing agile unit, agile local oscillator unit and general platform unit.
  • the baseband agile unit is connected to the mixing agile unit .
  • the mixing agile unit is connected with the agile local oscillator unit, and the baseband agile unit, the mixing agile unit and the agile local oscillator unit are all connected with the general platform unit.
  • the baseband agility unit includes a multi-parameter programmable processing module, a complex modulation signal baseband generation module and a storage module, and the multi-parameter programmable processing module is respectively connected to the complex modulation signal baseband generation module and the storage module;
  • the multi-parameter programmable processing module and the complex modulation signal baseband generation module are both connected to the universal platform unit;
  • the multi-parameter programmable processing module can receive and process signal parameters, and put the processed data into the storage module;
  • the complex modulation signal baseband generation module can complete the generation of agile signals, and the data in the storage module can enter the complex modulation signal baseband generation module for DA conversion and signal conditioning to generate a modulated baseband carrier signal.
  • the mixing agility unit includes a radio frequency up-conversion module, a microwave up-conversion module, and a millimeter-wave up-conversion module that are sequentially connected, and the complex modulation signal baseband generation module is connected to the radio frequency up-conversion module;
  • the radio frequency up-conversion module, the microwave up-conversion module and the millimeter-wave up-conversion module are all connected to the universal platform unit.
  • the agile local oscillator unit includes agile radio frequency local oscillator, agile microwave local oscillator and agile millimeter wave local oscillator;
  • the RF up-conversion module is connected to the agile RF local oscillator, the microwave up-conversion module is connected to the agile microwave local oscillator, and the millimeter-wave up-conversion module is connected to the agile millimeter-wave local oscillator;
  • the agile radio frequency local oscillator, the agile microwave local oscillator and the agile millimeter wave local oscillator are all connected to the universal platform unit.
  • the modulated baseband carrier signal enters a radio frequency up-conversion module, and synthesizes a 0.01GHz to 3GHz radio frequency band signal together with the agile radio frequency local oscillator in the radio frequency up-conversion module;
  • the radio frequency band signal enters the microwave up-conversion module and synthesizes the microwave signal from 0.01GHz to 20GHz in the microwave up-conversion module together with the agile microwave local oscillator;
  • the microwave signal enters the millimeter-wave up-conversion module, and synthesizes the agile signal from 0.01GHz to 40GHz in the millimeter-wave up-conversion module together with the agile microwave local oscillator, and then outputs it.
  • the universal platform unit includes a power supply module, a display module, an industrial computer module, and peripheral equipment and an expansion interface module; wherein the power supply module is used to supply power to each unit of the entire system, the display module is used for human-computer interaction, and the industrial computer module is used for Whole system control and communication, peripheral equipment and expansion interface are used for signal transmission.
  • the power supply module is used to supply power to each unit of the entire system
  • the display module is used for human-computer interaction
  • the industrial computer module is used for Whole system control and communication, peripheral equipment and expansion interface are used for signal transmission.
  • the frequency agile signal generation system proposed by the present invention realizes the generation of frequency agile electromagnetic signals with broadband complex modulation patterns within the signal analog frequency band through the mechanism of programmable baseband agility plus multi-stage mixing agility.
  • the method cannot generate frequency agile electromagnetic signals with complex modulation patterns.
  • the method of the prior art can only generate a simple frequency agile signal with low spurious index and poor signal quality.
  • the system proposed by the present invention due to the frequency mixing mode, can fundamentally reduce signal spurious and improve signal quality.
  • the multi-stage mixing agility method proposed by the present invention significantly reduces spurious deterioration, and can realize signal agility in the frequency coverage range of 10 MHz to 40 GHz.
  • Figure 1 is a schematic diagram of an existing DDS+microwave frequency multiplication method.
  • Figure 2 is a schematic diagram of a broadband complex frequency agile signal generation system based on baseband mixing.
  • a broadband complex frequency agile signal generation system based on baseband mixing includes a baseband agile unit, mixing agile unit, agile local oscillator unit and general platform unit.
  • the baseband agile unit is connected to the mixing agile unit
  • the mixing agile unit is connected to the agile local oscillator unit
  • the baseband agile unit, the mixing agile unit and the agile local oscillator unit are all connected to the general platform unit.
  • the baseband agility unit includes a multi-parameter programmable processing module, a complex modulation signal baseband generation module and a storage module, and the multi-parameter programmable processing module is respectively connected to the complex modulation signal baseband generation module and the storage module.
  • the multi-parameter programmable processing module and the complex modulation signal baseband generation module are both connected to the universal platform unit.
  • the multi-parameter programmable processing module is based on a field programmable gate array.
  • the multi-parameter programmable processing module can receive and digitally process the signal parameters.
  • the processed data includes the signal multi-parameter programming input data, signal parameter conversion data, and equipment Sequence construction data, sequence group model establishment data, etc., after multi-parameter operation processing, all become digital information, and then the digital information is parsed into adjusted baseband data and direct frequency synthesis control data. After that, the adjusted baseband is adjusted according to a certain sequence Data and direct frequency synthesis control data are put into the storage module to complete the programming and preview tasks of multi-parameter complex modulation signals.
  • the complex modulation signal baseband generation module is a kind of direct digital frequency synthesizer.
  • the complex modulation signal baseband generation module can complete the generation of agile signals.
  • the modulated baseband data and direct frequency synthesis control data in the storage module are sent in according to the specified sequence
  • Complex modulation signal baseband generation module complex modulation signal baseband generation module converts modulated baseband data into time-domain waveforms, realizes digital to analog conversion, generates modulated complex signal intermediate frequency carrier, that is, modulated baseband data is DA converted and signaled
  • a modulated baseband carrier signal is generated, and the frequency range of the modulated baseband carrier signal is 500MHz to 1GHz.
  • the complex modulation signal baseband generation module is also responsible for sending the parsed direct frequency synthesis control data to the bus of the universal platform unit to form frequency parameter data and power parameter data of the agile signal, and generate up-conversion control The data is sent to each up-conversion module of the mixing agility unit when the universal platform unit is running to control the frequency conversion output state of each up-conversion module.
  • the mixing agility unit includes a radio frequency up-conversion module, a microwave up-conversion module, and a millimeter-wave up-conversion module that are sequentially connected, and the complex modulation signal baseband generation module is connected to the radio frequency up-conversion module.
  • the radio frequency up-conversion module, the microwave up-conversion module and the millimeter-wave up-conversion module are all connected to the universal platform unit.
  • the agile local oscillator unit includes agile radio frequency local oscillator, agile microwave local oscillator and agile millimeter wave local oscillator.
  • the agile radio frequency local oscillator, the agile microwave local oscillator and the agile millimeter wave local oscillator are all connected to the universal platform unit.
  • the radio frequency up-conversion module is connected to the agile radio frequency local oscillator
  • the microwave up-conversion module is connected to the agile microwave local oscillator
  • the millimeter wave up-conversion module is connected to the agile millimeter wave local oscillator.
  • the agile local oscillator unit mainly provides fast switching and high spectral purity local oscillator signals for frequency synthesis for RF up-conversion modules, microwave up-conversion modules, and millimeter-wave up-conversion modules, and provides mixing for the fast frequency conversion of each up-conversion module. Frequency synthesis signal.
  • the source of the up-conversion local oscillator signal is the reference generation module.
  • the ultra-low noise and ultra-low spurious frequency reference signal of the reference generation module determines the phase noise and spectral purity of each level of the local oscillator, which is directly simulated by the up-conversion step-by-step mixing Later, it will eventually affect the frequency spectrum quality of the output signal of the frequency agile signal generator.
  • the modulated baseband carrier signal enters the RF up-conversion module, and synthesizes the 0.01GHz to 3GHz RF frequency band signal together with the agile RF local oscillator in the RF up-conversion module;
  • the radio frequency band signal enters the microwave up-conversion module and synthesizes the microwave signal from 0.01GHz to 20GHz in the microwave up-conversion module together with the agile microwave local oscillator;
  • the microwave signal enters the millimeter-wave up-conversion module, and synthesizes the agile signal of the full frequency band from 0.01GHz to 40GHz in the millimeter-wave up-conversion module together with the agile microwave local oscillator, and then outputs it.
  • the universal platform unit includes a power supply module, a display module, an industrial computer module, and peripheral equipment and an expansion interface module; the power supply module is used for power supply of each unit of the whole system, the display module is used for human-computer interaction, and the industrial computer module is used for control and communication of the whole system , Peripheral equipment and expansion interface are used for signal transmission.

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Abstract

一种基于基带混频的宽频段复杂样式捷变频信号发生系统，包括基带捷变单元、混频捷变单元、捷变本振单元和通用平台单元，基带捷变单元与混频捷变单元相连，混频捷变单元与捷变本振单元相连，基带捷变单元、混频捷变单元和捷变本振单元均与通用平台单元相连。通过可编程基带捷变加上多级混频捷变的机制，实现信号模拟频段范围内宽带复杂调制样式捷变频电磁信号的发生，由于采用混频方式，可从根本上降低信号的杂散，提升信号质量；采用多级混频捷变方式，杂散恶化情况明显减轻，可实现10MHz至40GHz的频率覆盖范围内的信号捷变频。

Description

一种基于基带混频的宽频段复杂样式捷变频信号发生系统 技术领域
本发明涉及捷变频领域，具体涉及一种基于基带混频的宽频段复杂样式捷变频信号发生系统。
 背景技术
捷变频电磁信号发生技术是捷变频雷达、电子对抗、复杂电磁环境模拟等技术领域的关键技术之一。目的是达到电磁信号频率的快速可控跳变。目前在10MHz至40GHz频率范围内最快频率切换时间可达到小于100ns的指标，即每秒钟频率切换次数可达几百万次。在以往的捷变频信号发生过程中，主要聚焦于信号频率的切换速度，而对信号样式、带宽等要素考虑较少。因此针对宽频段捷变频信号的发生通常采用DDS+微波倍频的方式。这种方式达到了频率切换速度的要求，但由于微波倍频机理决定了，此方式仅能用于产生连续波捷变频信号以及脉冲调制捷变频信号等简单样式的信号。对于复杂调制样式的信号在倍频过程中会产生非线性失真，从而限制了复杂调制样式捷变频信号的发生。
DDS+微波倍频的方法，以10MHz至18GHz捷变频信号发生为例，原理如图1所示。方案主要由DDS单元、微波倍频单元和参考信号发生模块组成。在DDS单元实现100MHz带宽线性调频信号，在微波倍频单元采用5级倍频实现捷变频信号的10MHz～18GHz频段的覆盖。倍频方式使DDS单元产生的信号频谱非线性拉伸，无法产生复杂调制格式信号的捷变倍频。此外，对于线性调频等简单样式信号来说，输出信号的线性调频特性和频谱纯度由倍频器的相频特性、幅频特性和带外抑制决定。本方案需要倍频的信号带宽较宽，最大时需要将4GHz至8GHz倍频到8GHz至16GHz，此带宽范围内幅频特性的平坦难度大。同时本方案进行了4次倍频，倍频器对信号畸变具有倍增效应，在连续四次倍频后频带内的幅度平坦度恶化明显。除此以外，合适的滤波器设计也是保证调制带宽内信号的幅度平坦的关键。本方案每倍频程内采用了三段滤波，在每次滤波后再倍频、滤波，一共经历了4次再倍频再滤波的过程，由于滤波器本身存在非线性失真，经过多次倍频、滤波再倍频、滤波的处理，信号的幅度平坦度将呈指数形式恶化。由此可见，此方案虽然可以满足捷变频速度的要求，但是无法产生复杂调制的捷变频信号。也可以看出，此方案产生的连续波或者线性调频等简单样式的捷变频信号的信号纯度也受到明显限制。这也导致了在以往基于此方法的捷变频信号发生技术中，发生信号的质量对采用DDS器件的指标高度依赖。
 技术解决方案
针对现有的捷变频信号发生方法存在的由于倍频过程中的频谱拉伸，无法保证复杂调制样式捷变频信号的发生，及倍频过程中信号杂散指标呈倍数恶化，导致所发生的捷变频信号质量低，高度依赖直接数字式频率合成器件的指标的问题，本发明提供了一种基于基带混频的宽频段复杂样式捷变频信号发生系统。
本发明采用以下的技术方案：
一种基于基带混频的宽频段复杂样式捷变频信号发生系统，包括基带捷变单元、混频捷变单元、捷变本振单元和通用平台单元，基带捷变单元与混频捷变单元相连，混频捷变单元与捷变本振单元相连，基带捷变单元、混频捷变单元和捷变本振单元均与通用平台单元相连。
优选地，所述基带捷变单元包括多参数可编程处理模块、复杂调制信号基带发生模块和存储模块，多参数可编程处理模块分别与复杂调制信号基带发生模块和存储模块相连；
多参数可编程处理模块和复杂调制信号基带发生模块均与通用平台单元相连；
所述多参数可编程处理模块能对信号参数进行接收和处理，并将处理后的数据放入存储模块中；
复杂调制信号基带发生模块能完成捷变信号的生成，存储模块中的数据能进入复杂调制信号基带发生模块中进行DA转换和信号调理后产生已调基带载波信号。
优选地，所述混频捷变单元包括依次连接的射频上变频模块、微波上变频模块和毫米波上变频模块，所述复杂调制信号基带发生模块与射频上变频模块相连；
射频上变频模块、微波上变频模块和毫米波上变频模块均与通用平台单元相连。
优选地，所述捷变本振单元包括捷变射频本振、捷变微波本振和捷变毫米波本振；
射频上变频模块与捷变射频本振相连，微波上变频模块与捷变微波本振相连，毫米波上变频模块与捷变毫米波本振相连；
捷变射频本振、捷变微波本振和捷变毫米波本振均与通用平台单元相连。
优选地，所述已调基带载波信号进入射频上变频模块，在射频上变频模块内与捷变射频本振共同合成0.01GHz至3GHz的射频频段信号；
射频频段信号进入微波上变频模块，在微波上变频模块内与捷变微波本振共同合成0.01GHz至20GHz的微波信号；
微波信号进入毫米波上变频模块，在毫米波上变频模块内与捷变微波本振共同合成0.01GHz至40GHz的捷变信号，然后输出。
优选地，所述通用平台单元包括电源模块、显示模块、工控机模块和外围设备及扩展接口模块；其中电源模块用于全系统各单元供电，显示模块用于人机交互，工控机模块用于全系统控制和通信，外围设备及扩展接口用于信号传输。
 有益效果
本发明具有的有益效果是：
1、本发明提出的捷变频信号发生系统，通过可编程基带捷变加上多级混频捷变的机制，实现信号模拟频段范围内宽带复杂调制样式捷变频电磁信号的发生，而现有的方法无法产生复杂调制样式捷变频电磁信号。
2、现有技术的方法仅能产生的简单样式捷变频信号杂散指标低，信号质量差。本发明提出的系统，由于采用混频方式，可从根本上降低信号的杂散，提升信号质量。
3、现有技术的方法由于每倍频一次杂散恶化6dB，因此限制了频率覆盖范围的提升。本发明提出的多级混频捷变方式，杂散恶化情况明显减轻，可实现10MHz至40GHz的频率覆盖范围内的信号捷变频。
 附图说明
图1为现有的DDS+微波倍频的方法的原理图。
图2为基于基带混频的宽频段复杂样式捷变频信号发生系统的原理图。
 本发明的实施方式
下面结合附图和具体实施例对本发明的具体实施方式做进一步说明：
结合图2，一种基于基带混频的宽频段复杂样式捷变频信号发生系统，包括基带捷变单元、混频捷变单元、捷变本振单元和通用平台单元。
其中，基带捷变单元与混频捷变单元相连，混频捷变单元与捷变本振单元相连，基带捷变单元、混频捷变单元和捷变本振单元均与通用平台单元相连。
基带捷变单元包括多参数可编程处理模块、复杂调制信号基带发生模块和存储模块，多参数可编程处理模块分别与复杂调制信号基带发生模块和存储模块相连。
多参数可编程处理模块和复杂调制信号基带发生模块均与通用平台单元相连。
多参数可编程处理模块是基于现场可编程门阵列实现的，多参数可编程处理模块能对信号参数进行接收和数字处理，处理的数据包括信号多参数的编程输入数据、信号参数转换数据、设备序列构建数据、序列组模型建立数据等，经过多参数运算处理后，全部变为数字信息，然后将数字信息解析为已调基带数据和直接频率合成控制数据，之后，按一定序列将已调基带数据和直接频率合成控制数据放入存储模块中，完成多参数复杂调制信号的编程及预览任务。
复杂调制信号基带发生模块属于直接数字式频率合成器的一种，复杂调制信号基带发生模块能完成捷变信号的生成，存储模块中的已调基带数据和直接频率合成控制数据按照指定序列送入复杂调制信号基带发生模块，复杂调制信号基带发生模块将已调基带数据转化为时域波形，实现数字到模拟的转换，生成已调复杂信号的中频载波，即将已调基带数据进行DA转换和信号调理后产生已调基带载波信号，已调基带载波信号的频率范围是500MHz至1GHz。
根据捷变频覆盖频段的要求，复杂调制信号基带发生模块还负责把解析的直接频率合成控制数据发送到通用平台单元的总线上，形成捷变信号频率参量数据和功率参量数据，以及生成上变频控制数据，在通用平台单元运行时分别送入混频捷变单元的各个上变频模块，控制各个上变频模块的变频输出状态。
混频捷变单元包括依次连接的射频上变频模块、微波上变频模块和毫米波上变频模块，复杂调制信号基带发生模块与射频上变频模块相连。
射频上变频模块、微波上变频模块和毫米波上变频模块均与通用平台单元相连。
捷变本振单元包括捷变射频本振、捷变微波本振和捷变毫米波本振。
捷变射频本振、捷变微波本振和捷变毫米波本振均与通用平台单元相连。
射频上变频模块与捷变射频本振相连，微波上变频模块与捷变微波本振相连，毫米波上变频模块与捷变毫米波本振相连。
捷变本振单元主要为射频上变频模块、微波上变频模块、毫米波上变频模块提供频率合成用的快速切换且具备高频谱纯度的本振信号，为各个上变频模块的快速频率变换提供混频合成信号。
上变频本振信号的源头是参考发生模块，参考发生模块的超低噪声和超低杂散频率参考信号决定了各级本振的相位噪声和频谱纯度，经过直接模拟上变频的逐级混频后，最终将影响到捷变频信号发生器的输出信号频谱质量。
已调基带载波信号进入射频上变频模块，在射频上变频模块内与捷变射频本振共同合成0.01GHz至3GHz的射频频段信号；
射频频段信号进入微波上变频模块，在微波上变频模块内与捷变微波本振共同合成0.01GHz至20GHz的微波信号；
微波信号进入毫米波上变频模块，在毫米波上变频模块内与捷变微波本振共同合成0.01GHz至40GHz的全频段的捷变信号，然后输出。
通用平台单元包括电源模块、显示模块、工控机模块和外围设备及扩展接口模块；其中电源模块用于全系统各单元供电，显示模块用于人机交互，工控机模块用于全系统控制和通信，外围设备及扩展接口用于信号传输。
当然，上述说明并非是对本发明的限制，本发明也并不仅限于上述举例，本技术领域的技术人员在本发明的实质范围内所做出的变化、改型、添加或替换，也应属于本发明的保护范围。

Claims (6)

  1. 一种基于基带混频的宽频段复杂样式捷变频信号发生系统，其特征在于，包括基带捷变单元、混频捷变单元、捷变本振单元和通用平台单元，基带捷变单元与混频捷变单元相连，混频捷变单元与捷变本振单元相连，基带捷变单元、混频捷变单元和捷变本振单元均与通用平台单元相连。
  2. 根据权利要求1所述的一种基于基带混频的宽频段复杂样式捷变频信号发生系统，其特征在于，所述基带捷变单元包括多参数可编程处理模块、复杂调制信号基带发生模块和存储模块，多参数可编程处理模块分别与复杂调制信号基带发生模块和存储模块相连；
    多参数可编程处理模块和复杂调制信号基带发生模块均与通用平台单元相连；
    所述多参数可编程处理模块能对信号参数进行接收和处理，并将处理后的数据放入存储模块中；
    复杂调制信号基带发生模块能完成捷变信号的生成，存储模块中的数据能进入复杂调制信号基带发生模块中进行DA转换和信号调理后产生已调基带载波信号。
  3. 根据权利要求2所述的一种基于基带混频的宽频段复杂样式捷变频信号发生系统，其特征在于，所述混频捷变单元包括依次连接的射频上变频模块、微波上变频模块和毫米波上变频模块，所述复杂调制信号基带发生模块与射频上变频模块相连；
    射频上变频模块、微波上变频模块和毫米波上变频模块均与通用平台单元相连。
  4. 根据权利要求3所述的一种基于基带混频的宽频段复杂样式捷变频信号发生系统，其特征在于，所述捷变本振单元包括捷变射频本振、捷变微波本振和捷变毫米波本振；
    射频上变频模块与捷变射频本振相连，微波上变频模块与捷变微波本振相连，毫米波上变频模块与捷变毫米波本振相连；
    捷变射频本振、捷变微波本振和捷变毫米波本振均与通用平台单元相连。
  5. 根据权利要求4所述的一种基于基带混频的宽频段复杂样式捷变频信号发生系统，其特征在于，所述已调基带载波信号进入射频上变频模块，在射频上变频模块内与捷变射频本振共同合成0.01GHz至3GHz的射频频段信号；
    射频频段信号进入微波上变频模块，在微波上变频模块内与捷变微波本振共同合成0.01GHz至20GHz的微波信号；
    微波信号进入毫米波上变频模块，在毫米波上变频模块内与捷变微波本振共同合成0.01GHz至40GHz的捷变信号，然后输出。
  6. 根据权利要求1所述的一种基于基带混频的宽频段复杂样式捷变频信号发生系统，其特征在于，所述通用平台单元包括电源模块、显示模块、工控机模块和外围设备及扩展接口模块；其中电源模块用于全系统各单元供电，显示模块用于人机交互，工控机模块用于全系统控制和通信，外围设备及扩展接口用于信号传输。
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